Nokea
A client is prescribed 500 mg of ampicillin IM. The drug is supplied in a multidose vial that requires reconstitution with 2 mL sterile water for injection. The resulting concentration contains 250 mg/mL. How much of the drug would the nurse administer?
- A. 0.5 mL
- B. 1.0 mL
- C. 1.5 mL
- D. 2.0 mL
Correct Answer: D
Rationale: The drug is supplied as 250 mg/mL after reconstitution. To calculate the amount needed, set up the equation: 500 mg / 250 mg ? 1 mL = 2.0 mL.
You may also like to solve these questions
The nurse is checking the dosage of a drug ordered in mg/ kg. A client weighs 275lb. The client weighs kilograms.
- A. 100 kg
- B. 125 kg
- C. 150 kg
- D. 175 kg
Correct Answer: B
Rationale: Pounds must be converted to kilograms using the conversion factor of 2.2 lb in 1 kg. Therefore, 275 / 2.2 = 125.
A nurse is checking the label of a drug. Which of the following would the nurse identify as an important item needed to administer a drug? Select all that apply.
- A. Monitoring parameters
- B. Side effects
- C. Dosage form
- D. Drug name
- E. Dosage strength
Correct Answer: C,D,E
Rationale: Although drug labels contain a great amount of information about the drug being given, three specific items are needed to administer a drug: the drug name, dosage form, and dosage strength.
A client is to receive 0.5 mg of a drug parenterally. The drug is available in a 2 mg/mL vial. The nurse would administer
- A. 0.25 mL
- B. 0.5 mL
- C. 1.0 mL
- D. 2.0 mL
Correct Answer: A
Rationale: 0.5 mg ? 1 mL / 2 mg = 0.25 mL
A group of nursing students are reviewing the various systems of measurement. The students demonstrate understanding of the information when they identify which of the following as a metric system unit? Select all that apply.
- A. Inch
- B. Milligram
- C. Centimeter
- D. Ounce
- E. Pound
Correct Answer: B,C
Rationale: The metric system uses the gram, liter, and meter. Milligram and centimeter are metric units.
Which of the following drug doses is written correctly? Select all that apply.
- A. Synthroid 0.175 \mathrm{mg}
- B. Synthroid 175 \mathrm{mg}
- C. Synthroid 175 \mathrm{mcg}
- D. Synthroid 175.0 \mathrm{mcg}
- E. Synthroid 1750 \mathrm{mg}
Correct Answer: A,C
Rationale: When there is no number to the left of the decimal, a zero is written; therefore, Synthroid 0.175 mg and 175 mcg are correct.